feat: product.

models/device.go

@@ -7,7 +7,10 @@ import (
 
 // Gateway 代表一个物联网网关设备
 type Gateway struct {
-	gorm.Model
+	ID        uint           `gorm:"primaryKey" json:"id"`
+	CreatedAt time.Time      `json:"createdAt"`
+	UpdatedAt time.Time      `json:"updatedAt"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
 	// MAC地址是网关的唯一标识
 	MAC string `gorm:"size:32;uniqueIndex;not null" json:"mac"`